Valve



0. M. JONES.v

VALVE. APPLICATION FILED JAN. 9, I917.

3 woe/Mm UNITED STATES OWEN MARSHALL JONES, OF NEW YORK, N. Y.

VALVE.

Application filed January 9, 1917.

To all whom it may concern:

Be it known that I, OWEN MARSHALL JoNns, a citizen of the United States,and a resident of the borough of Manhattan, city, county, and State ofNew York, have invented certain new and useful Improvements in Valves,of which the following is a specification accompanied by drawings.

The invention relates to improvements in valves, but in particular toimprovements in valves commonly known as stop valves which are used forstopping or retarding the flow of fluids through ducts in which thevalves are placed or to which the valves are connected, although theinvention may be used in any connection in which it is found applicable.

The objects of the invention are to improve upon and simplify theconstruction of such valves and to increase their efficiency.

Other objects of the invention are to in sure tight seating valves.

Further objects of the invention are to supply valves which will becometighter the longer they are in use by having the valves self-grindingagainst the seats, thereby reducing to a minimum the possibility ofleaks through the valves; and to these ends the invention consists ofapparatus and devices for carrying out the above objects embodied in avalve having the features of construction, combinations of elements, andarrangement of parts, substantially as hereinafter fully described andclaimed in this specification, and shown in the accompanying drawings,in which- Figure 1 is a longitudinal sectional elevation of one form ofthe apparatus embodying the invention.

Fig. 2 is a transverse section of the valve body through line A-B ofFig. 1.

Fig. 3 is a plan view ofa valve seat protecting plate.

Referring to the drawings, in Fig. 1, I have shown an illustrativeembodiment of the invention. This view shows the valve open. 2 and 2represent the body which may be of any suitable metal and which is intwo sections properly held together, thus forming the body. 3 is thevalve seat against which the valve disk 4: seats. 6 and 6 are portsthrough the valve disk which register respectively with the apertures 5and 5 in the seat to allow flow of fluid through the valve. 7 is theinlet to the body. 8 is the outlet of the valve body. 9 is aSpecification of Letters Patent.

Patented Dec. 28, 1920.

Serial No. 141,416.

stem extending from the valve disk with a transverse slot in the outerend. 2 1 is a barrel extending into the chamber of the valve bodysection 2. This barrel may be an integral part of the valve body section2as shown or a separate barrel inserted through the wall of the body.This barrel protects the stems 10 and 9 from corroding or pittingelements. One end of the barrel 24E enters at the center portion of thevalve seat 8 and this seat 3 is held in place by the overlapping of theflange on the larger end of the valve body section 2. 10 is a stemextending through the barrel 24: with a fiat reduced section at theinner end to be engaged by the slot in the stem 9. The stems 10 and 9comprise the operating stem. 26 is an enlarged portion of the stem 10and it is beveled on one side to fit in a corresponding bevel in thebottom of the barrel 21, thereby making a seat joint to prevent leakagearound the stem 10 where it passes through the valve body. The enlargedportion 26 is for emergency only in case there might be slight leakagebetween the seat and the disk of the valve and into the barrel aroundthe stem 9. 16 is a spring placed around the stem 10, one end bearing onthe body 2* and the other end bearing against the collar 14, the collarbeing held in place on the stem 10 by the set screw 15, the collar beingplaced so that the spring is compressed, thus holding the beveledportion 26 against its seat. 13 is a handle acting as a r lever forrevolving the valve disk.

The operation of the valve is as follows: The valve as shown is open andallows the fluid to pass through. To stop the flow of the fluid thelever 13 is revolved, which in turn revolves the stems 10 and 9 formingthe operating stem, which revolves the disk 4 which moves the ports 6and 6 out of register with the apertures 5 and 5*, thereby stopping theflow of the fluid. Naturally the reverse action of the lever againplaces the ports in register with the apertures. The fluid from theinlet side exerts a pressure on the back of the disk 4, thereby holdingit tight against the seat 3 so that the fluid will not leak through theapertures in the seat 3. When the valve is in use, pressure ismaintained on the back of the disk 4, so when the disk 4 is revolved toopen the valve, it bears on the seat 3 and each time the valve is shutor opened the disk grinds on the seat, thus keeping a smooth seatingsurface at all times. The stems as shown are so arranged that there is aspace for play between the bottom of the slot in the end of the stem 9and the end of the flattened section of the stem 10 so that as the diskgrinds or wears into the seat, the stem does not retard the disk 4 fromalways being seated against the seat 3.

I have also shown means for protecting that portion of the valve seatwhich is exposed through the port or ports of the valve disk when thevalve is closed. 37 is a disk which forms the means for protecting thatportion of the face of the valve seat which is exposed through the portor ports of the valve'disk'when the valve is closed. four lugs 38 onthedisk- 37 slide into the four slots 39 in the face of the flanged endof the valve body section 2 to hold the'disk 37 in place so that it willnot revolve with the valve disk 36. The face of the valve disk 4 bearson the face of the seat disk 5. The side of the disk 37 which faces thevalve disk 4 is faced off and bears on the back of the valve disk, 4,this back side of the valve disk also being'faced off. The Valve diskrevolves and bears on the valve seat and the disk 37 bears on the backof the valve disk'4 by'pressure entering at the inlet end of the valvebody. The lugs 38 loosely fit into the slots 39 so that the disk 37 willfollow the valve .disk 4 when it wears either on its face or its back orwears into the valve seat, thereby scale, grit or other matter cannotenter the port of the valve disk when the valve is closed and attack oraffect the faced surface of the valve seat.

The protecting plate 37 may also perform the functions of a valve seatin case of any ba'ck'pressure entering the valve through the dischargechamber. Under such circum'stances the back pressure will move the disk4 together with the protecting plate 37 to the leftin- Fig. 1, and theplate 37 will then bear against shoulder 42 shown clearly in Fig. 2.Thereby'the protecting plate 37 will act as a valve seat, the disk beingrevolved against it. The lugs 38 engaging grooves 39 prevent the plate37 from rotatingand' the jointed valve stem will permit'the disk 4 tomove backward against plate 37. A

Obviously some features, parts, or con struction may be used withoutothers and in combination with others and my invention may be embodiedin widely varying forms.

Therefore, without limiting myself to the construction and arrangementand combinations of parts as shown'and described and Without enumeratingequivalents; I claim and desire to obtain by Letters Patent thefollowing:

1. In a valve the combination of a casing providing inlet and outletchambers, a valve The seat having at least one aperture through it andfaced on the side toward the inlet chamber, a valve disk on the inletside of said valve seat and having at least one aperture through it, anda valve seat protecting plate free to move against said valve disk andheld from rotation therewith.

2. In a valve, the combination of a casing providing inlet and outletchambers, an apertured valve seat faced onthe side toward the inletchamber, an apertured valve disk on the inlet side of said valve seat,and a valve seat protecting plate free to move against said valve diskand held from rotation therewith, the said plate forming a valve seatwhen the normal direction of flow through the valve body is reversed.

3. In a valve, the combination of a casing providing inlet and outletchambers, a valve seat having at least one aperture through it and facedon the side toward the inlet chamber, an apertured valve disk on thein-- relative movement forward and backward in the valve casing, thesaid protecting plate adapted to form a valve seat when the normaldirection offiow through the valve body is reversed. V

4. A valve comprising a casing having inlet and outlet chambers, a valveseat having a'tleast one aperture through it and faced onthe side towardthe inletchamber,

an apertured valve disk on the-inlet 'sideof' said valve seat, and avalve seat protecting plate adjacent said disk and having at least oneport reglsterlng substantially with at least one port of said valve seatand mounted in the said valve casing so as to be'slid'ahly movableforward and backward. f

5. A valve comprising a casing having inlet and outlet chambers, a valveseat having at least one portthrou gh it and faced on the side towardthe inlet chamber, an apertured valve disk on the inlet side of saidvalve seat suitabl mounted in the said valve casing and suitabl stem topermit of it being slidably movable forward and backward and to permitof it being revolved clockwise and anti-clockwise,

y engaged by an operating and a valve seat protecting plate adjacentsaid disk and having at least one port registering substantially with atleast one port of said valveseat.

6. A valve comprising a casing having inlet and outlet chambers, a valveseat having at least one aperture through it and faced on the sidetoward the inlet chamber, a valve disk on the inlet side of said valveseat and having at least one aperture through it, a valve seatprotecting plate adjacent said disk and having at least one aper turethrough it registering substantially with at least one aperture of saidvalve seat and mounted in the said valve casing so as to be slidablymovable forward and backward, and means to hold said protecting plateagainst rotation.

7. A valve comprising a casing having inlet and outlet chambers, a valveseat having at least one aperture through it and faced on the sidetoward the inlet chamber, an apertured valve disk on the inlet side ofsaid valve seat suitably mounted in the said valve casing and suitablyengaged by an operating stem to permit of it being slidably r vableforward and backward and to permit of it being revolved clockwise andanticlockwise, a valve seat protecting plate adjacent said disk andhaving at least one port registering substantially with at least oneaperture of said valve seat, and means to hold said protecting plateagainst rotation.

8. A valve comprising a casing having inlet and outlet chambers, anapertured valve seat faced on the side toward the inlet chamber, anapertured valve disk on the inlet side of said valve seat suitablymounted in the said valve casing and suitably engaged by an operatingstem to permit of it being slidably movable forward and backward and topermit of it being revolved clockwise and anti-clockwise, and a valveseat protecting plate free to move against said valve disk and held fromrotation therewith.

9. A valve comprising a casing having inlet and outlet chambers, anapertured valve seat faced on the side toward the inlet chamber, anapertured valve disk on the inlet side f said valve seat suitablymounted in the said valve casing and suitably engaged by an operatingstem to permit of it being slidably movable forward and backward and topermit of it being revolved clockwise and anti-clockwise, and a valveseat protecting plate free to move against said valve disk and held fromrotation therewith, and mounted in the said valve casing so as to beslidably movable forward and backward.

10. A valve comprising a casing having inlet and outlet chambers, anapertured valve seat faced on the side toward the inlet chamber, anapertured valve disk on the inlet side of said valve seat suitablymounted in the said valve casing and suitably engaged by an operatingstem to permit of it being slidably movable forward and backward and tpermit of it being revolved'clockwise and anti-clockwise, and a valveseat protecting plate free to move against said valve disk and held fromrotation therewith, and mounted in the said valve casing so as to beslidably movable forward and backward, the said protecting plate forminga valve seat when the normal direction of flow through the valve body isreversed.

In testimony whereof I have signed this specification.

OWEN MARSHALL JONES.

